July 12 at 2:30: The composer John Adams is a leading figure at Boston’s musical duchy, but another Adams—John Luther Adams, also a Pulitzer Prize winner—is gaining ground. The Seattle Symphony’s Ludovic Morlot conducts the B.S.O. in Adams’s “The Light That Fills the World” as well as Mozart’s Violin Concerto No. 3 in G Major (with Pinchas Zukerman) and Dvořák’s Seventh Symphony. (Lenox, Mass. bso.org.)